. >> president obama didn't repair our economy. he did not save medicare and social security. he did not tame the spending and borrowing. he did not reach across the aisle to bring us together. >> reporter: the speech was build as a major economic address but president obama canned it in an interviews with an nbc affiliate in des moines. >> governor romney like every challenger will suggest he has better ideas. the problem and you probably heard in the speech today there's no bear there. >> reporter: in a bid to turn out young voters mr. obama did a live interview with mtv on friday. >> the most vibrant musical art form right now over the last ten, 15 years has been hip-hop. >> reporter: he was asked about student loans, climate change and same sex marriage. >> i have a track record of not just talking the talk on this but also walking the walk ending don't-ask, don't-tell and i'm going to keep on pushing as hard as i can but, you know, what's really going to change this is the young people their attitudes, i think will reflect the future. >> reporter: "the washington post" is